Spatio-Temporal Correlation Tensors Reveal Functional Structure in Human Brain

Spatio-Temporal Correlation Tensors Reveal Functional Structure in Human Brain

Resting state functional magnetic resonance imaging (fMRI) has been commonly used to measure functional connectivity between cortical regions, while diffusion tensor imaging (DTI) can be used to characterize structural connectivity of white matter tracts. In principle combining resting state fMRI and DTI data could allow characterization of structure-function relations of distributed neural net...

Spatio-temporal analysis in functional brain imaging

Localizing sources of activity from electroencephalography (EEG) and magnetoencephalography (MEG) measurements involves solving an ill-posed inverse problem, where infinitely many source distribution patterns can give rise to identical measurements. This thesis aims to improve the accuracy of source localization by incorporating spatio-temporal models into the reconstruction procedure. First, w...

Motion Estimation Based on Spatio-temporal Correlation

Many objects in a scene are composed of more than one block. So when the object moves, a set of blocks, move together. Most blocks are either completely in the background or are part of the moving object and in most cases (except boundary blocks) neighboring blocks move together. Given that a majority of the neighbors of a block move in a certain direction, it is reasonable to assume that the b...

Modularity maps reveal community structure in the resting human brain

Whole-brain analytic measures of network communication reveal increased structure-function correlation in right temporal lobe epilepsy

The in vivo structure-function relationship is key to understanding brain network reorganization due to pathologies. This relationship is likely to be particularly complex in brain network diseases such as temporal lobe epilepsy, in which disturbed large-scale systems are involved in both transient electrical events and long-lasting functional and structural impairments. Herein, we estimated th...